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Date: Tue, 7 Jul 2020 16:47:59 -0700
From: Andre Guedes <andre.guedes@...el.com>
To: netdev@...r.kernel.org
Cc: intel-wired-lan@...ts.osuosl.org
Subject: [PATCH ethtool 3/4] igc: Parse VLANPQF register fields
This patch adds support for parsing the VLAN Priority Queue Filter
(VLANPQF) register fields.
Signed-off-by: Andre Guedes <andre.guedes@...el.com>
---
igc.c | 98 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 98 insertions(+)
diff --git a/igc.c b/igc.c
index df3916c..6a2e06d 100644
--- a/igc.c
+++ b/igc.c
@@ -35,8 +35,39 @@
#define RCTL_DPF 0x00400000
#define RCTL_PMCF 0x00800000
#define RCTL_SECRC 0x04000000
+#define VLANPQF_VP0QSEL 0x00000003
+#define VLANPQF_VP0PBSEL 0x00000004
+#define VLANPQF_VLANP0V 0x00000008
+#define VLANPQF_VP1QSEL 0x00000030
+#define VLANPQF_VP1PBSEL 0x00000040
+#define VLANPQF_VLANP1V 0x00000080
+#define VLANPQF_VP2QSEL 0x00000300
+#define VLANPQF_VP2PBSEL 0x00000400
+#define VLANPQF_VLANP2V 0x00000800
+#define VLANPQF_VP3QSEL 0x00003000
+#define VLANPQF_VP3PBSEL 0x00004000
+#define VLANPQF_VLANP3V 0x00008000
+#define VLANPQF_VP4QSEL 0x00030000
+#define VLANPQF_VP4PBSEL 0x00040000
+#define VLANPQF_VLANP4V 0x00080000
+#define VLANPQF_VP5QSEL 0x00300000
+#define VLANPQF_VP5PBSEL 0x00400000
+#define VLANPQF_VLANP5V 0x00800000
+#define VLANPQF_VP6QSEL 0x03000000
+#define VLANPQF_VP6PBSEL 0x04000000
+#define VLANPQF_VLANP6V 0x08000000
+#define VLANPQF_VP7QSEL 0x30000000
+#define VLANPQF_VP7PBSEL 0x40000000
+#define VLANPQF_VLANP7V 0x80000000
#define RAH_QSEL_SHIFT 18
+#define VLANPQF_VP1QSEL_SHIFT 4
+#define VLANPQF_VP2QSEL_SHIFT 8
+#define VLANPQF_VP3QSEL_SHIFT 12
+#define VLANPQF_VP4QSEL_SHIFT 16
+#define VLANPQF_VP5QSEL_SHIFT 20
+#define VLANPQF_VP6QSEL_SHIFT 24
+#define VLANPQF_VP7QSEL_SHIFT 28
static const char *bit_to_boolean(u32 val)
{
@@ -48,6 +79,11 @@ static const char *bit_to_enable(u32 val)
return val ? "Enabled" : "Disabled";
}
+static const char *bit_to_prio(u32 val)
+{
+ return val ? "Low" : "High";
+}
+
int igc_dump_regs(struct ethtool_drvinfo *info, struct ethtool_regs *regs)
{
u32 reg;
@@ -147,5 +183,67 @@ int igc_dump_regs(struct ethtool_drvinfo *info, struct ethtool_regs *regs)
bit_to_boolean(reg & RAH_AV));
}
+ offset = 204;
+
+ reg = regs_buff[offset];
+ printf("%04d: VLANPQF (VLAN Priority Queue Filter) \n"
+ " Priority 0 \n"
+ " Queue: %d\n"
+ " Packet Buffer: %s\n"
+ " Valid: %s\n"
+ " Priority 1 \n"
+ " Queue: %d\n"
+ " Packet Buffer: %s\n"
+ " Valid: %s\n"
+ " Priority 2 \n"
+ " Queue: %d\n"
+ " Packet Buffer: %s\n"
+ " Valid: %s\n"
+ " Priority 3 \n"
+ " Queue: %d\n"
+ " Packet Buffer: %s\n"
+ " Valid: %s\n"
+ " Priority 4 \n"
+ " Queue: %d\n"
+ " Packet Buffer: %s\n"
+ " Valid: %s\n"
+ " Priority 5 \n"
+ " Queue: %d\n"
+ " Packet Buffer: %s\n"
+ " Valid: %s\n"
+ " Priority 6 \n"
+ " Queue: %d\n"
+ " Packet Buffer: %s\n"
+ " Valid: %s\n"
+ " Priority 7 \n"
+ " Queue: %d\n"
+ " Packet Buffer: %s\n"
+ " Valid: %s\n",
+ offset,
+ reg & VLANPQF_VP0QSEL,
+ bit_to_prio(reg & VLANPQF_VP0PBSEL),
+ bit_to_boolean(reg & VLANPQF_VLANP0V),
+ (reg & VLANPQF_VP1QSEL) >> VLANPQF_VP1QSEL_SHIFT,
+ bit_to_prio(reg & VLANPQF_VP1PBSEL),
+ bit_to_boolean(reg & VLANPQF_VLANP1V),
+ (reg & VLANPQF_VP2QSEL) >> VLANPQF_VP2QSEL_SHIFT,
+ bit_to_prio(reg & VLANPQF_VP2PBSEL),
+ bit_to_boolean(reg & VLANPQF_VLANP2V),
+ (reg & VLANPQF_VP3QSEL) >> VLANPQF_VP3QSEL_SHIFT,
+ bit_to_prio(reg & VLANPQF_VP3PBSEL),
+ bit_to_boolean(reg & VLANPQF_VLANP3V),
+ (reg & VLANPQF_VP4QSEL) >> VLANPQF_VP4QSEL_SHIFT,
+ bit_to_prio(reg & VLANPQF_VP4PBSEL),
+ bit_to_boolean(reg & VLANPQF_VLANP4V),
+ (reg & VLANPQF_VP5QSEL) >> VLANPQF_VP5QSEL_SHIFT,
+ bit_to_prio(reg & VLANPQF_VP5PBSEL),
+ bit_to_boolean(reg & VLANPQF_VLANP5V),
+ (reg & VLANPQF_VP6QSEL) >> VLANPQF_VP6QSEL_SHIFT,
+ bit_to_prio(reg & VLANPQF_VP6PBSEL),
+ bit_to_boolean(reg & VLANPQF_VLANP6V),
+ (reg & VLANPQF_VP7QSEL) >> VLANPQF_VP7QSEL_SHIFT,
+ bit_to_prio(reg & VLANPQF_VP7PBSEL),
+ bit_to_boolean(reg & VLANPQF_VLANP7V));
+
return 0;
}
--
2.26.2
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